Relationship between hepatic haemodynamics assessed by Doppler ultrasound and liver stiffness

Veronica Salvatore1, Alberto Borghi, Eugenia Peri

  • 1Department of Digestive Disease and Internal Medicine, Azienda Ospedaliero-Universitaria di Bologna Policlinico S.Orsola-Malpighi, Bologna, Italy.

Insights

Doppler ultrasound parameters, including hepatic and splenic artery resistance indexes and hepatic vein waveform, correlate with liver stiffness in hepatitis C patients. These non-invasive methods may offer similar information to Transient Elastography for assessing liver fibrosis.

Area of Science:

  • Hepatology
  • Medical Imaging
  • Cardiovascular Physiology

Background:

  • Chronic liver disease due to hepatitis C virus (HCV) infection is a significant global health concern.
  • Accurate assessment of liver stiffness is crucial for staging liver fibrosis and guiding treatment decisions.
  • Transient Elastography (TE) is a widely used non-invasive method for measuring liver stiffness, but Doppler ultrasonography offers additional hemodynamic insights.

Purpose of the Study:

  • To investigate the relationship between hepatic hemodynamics measured by Doppler ultrasonography and liver stiffness assessed by TE.
  • To evaluate the diagnostic performance of Doppler ultrasound parameters in predicting liver stiffness in patients with HCV-related chronic liver disease.

Main Methods:

  • One hundred consecutive patients with HCV-related chronic liver disease were included.
  • Doppler ultrasound parameters analyzed included hepatic artery resistance index (HARI), splenic artery resistance index (SARI), and hepatic vein waveform pattern.
  • Liver stiffness was measured using Transient Elastography (TE).

Main Results:

  • Both HARI and SARI showed a significant correlation with liver stiffness (p<0.0001).
  • HARI cut-off of 0.64 yielded 84.4% sensitivity and 69.1% specificity for predicting stiffness >13 kPa.
  • SARI cut-off of 0.56 yielded 81.3% sensitivity and 48.5% specificity. Combined HARI and SARI above cut-offs showed 78% accuracy for stiffness >13 kPa.
  • Hepatic vein waveform pattern (triphasic vs. bi-/monophasic) significantly differed in liver stiffness values (p=0.005).

Conclusions:

  • Doppler ultrasound parameters, specifically HARI, SARI, and hepatic vein waveform, provide valuable information regarding liver stiffness in HCV patients.
  • These non-invasive Doppler ultrasound assessments may serve as a complementary or alternative tool to TE for evaluating liver fibrosis in this population.
Abstract

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